Hi: I have the first-level analysis of two different fMRI studies of the same patient... How can I do a higher level analysis to get the difference between the first-level analysis ?... I read the documentation of FSL, but I couldn't understand very well how can I do such higher-level analysis... Sincerely, Gonzalo Rojas Costa -- Gonzalo Rojas Costa Laboratory of Medical Image Processing Department of Neuroradiology Institute of Neurosurgery Dr. Asenjo Jose Manuel Infante 553, Providencia, Santiago, Chile. Tel/Fax: 56-2-2003290 Cel: 56-9-7771785 www.neurorradiologia.cl